#!/bin/usr/bash
for name in `find . \\( -path './build' -o -path './.ccls*' \\) -prune -o -name 'my_*' -print`
do 
    nowpath=${name%/*}/
    newname=spw_${name##*/my_}
    newname=${nowpath}${newname}
    mv ${name} ${newname}
done
